Pump-lifter.



PATENTED MAR. 10 1903.

T. D. STARK.

PUMP LIFTER. APPLIOATIONTILED APR. 24. 1902.

2 SHEETS-SHEET 1.

N0 MODEL.

WITNESSES ATTORNEYS No. 722,463. I PATENTED MAR. 10, 1903.

' T. D. STARK.

PUMP LIFTER. APPLIOAT ION FILED APR 24, 1902.

N0 MODEL.

2 SHEETS-SHEBT 2. I

9 9 w/mzssm nv VE/VTOR M v Z W C Armk/vHs UNITED STATES PATENT ()FFTCE.

THOMAS DEWIT STARK, OF REDBLUFF, CALIFORNIA.

PUM P-LIFTER.

SPECIFICATION forming part of Letters Patent No. 722,463, dated March10, 1903.

Application filed April 24, 1902.

To all whom, it may concern:

Be it known that I, THOMAS Dnwrr STARK, a citizen of the United States,residing at Rod bluff, in the county of Tehama and State ofCalifornia,have invented certain new and useful Improvements inPump-Lifters, of which the following is a full and completespecification, such as will enable those skilled in the art to which itappertains to make and use the same.

The object of this invention is to provide an improved apparatus forremoving pumps from deep wells, a further object being to provide anapparatus of this class which is simple in construction and which may beconveniently operated to accomplish the desired result without danger ofthe pump-pipe and its attachments dropping back into the well, and thusoccasion great inconvenience, delay, and danger of breakage, andconsequent damage.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by the same reference characters ineach of the views, and in which- Figure 1 is a plan view of my improvedpump-lifting apparatus; Fig. 2, a side elevation thereof; Fig. 3, acentral longitudinal section, and Fig. 4 a rear end view thereof.

In the practice of my invention I provide an apparatus for the purposespecified which comprises an oblong frame composed of two side membersa, connected at their rear ends by a transverse block a and to the frontend of which is hinged, at one side, as shown at a a head-block h, whichis also connected with the opposite side of the frame at a in the samemanner as at a The connections of the headed block a with the main frameat a and a is made by means of jaws through which are passed apivot-pin, and by remov ing either of the pivot-pins at a or a theheaded block a may be swung on its opposite connection, as will bereadily understood.

Between the side members a of the main frame and forwardly of thetransverse rear block Ct lS placed a block b, which is movablelongitudinally of the main frame, and passing through the block a is ascrew 19 which bears on the block b and is intended to force Serial No.104,422. (No model.)

the same forwardly when desired; but this screw may, if preferred, havea bearing in said block b by which the latter may be moved bothforwardly and backwardly. Hinged to thefront side of the block b, asshown at 12 is a jaw b the front end of which is provided with acircular recess having teeth b and secured in the central rear portionof the head a is a stationary jaw 0., having corresponding teeth a Thejaw 12 is provided on its top side with two parallel raised portions bwhich may be formed integrally therewith or be formed separately and besecured thereto, and passed through the front and rear ends of theseraised portions b" are rods 19 and b To the rod N, which is near thefront end of the jaw b, is pivoted a lever c, the rear end of whichpasses beneath the rod b and the front end of which projects forwardlyand is connected with the base member 0 secured to the head a by anysuitable flexible connections 0 such as a rope, chain, strap, or similardevice. Pivoted or hinged at the opposite side of the main frame, asshown at d, is a support (1 and in the top of this support is pivoted atd a lever d, to the shorter arm of which is pivoted,.as shown at 61 alink (1 to which is pivoted a swinging jaw e, having adownwardly-directed member 2 which is adapted to bear under certainconditions against the rod 19 and the end of the longer arm of this jawprojects forwardly and is provided with a segmental recess a providedwith teeth c and pivoted to said arm of said jaw is a yoke-shaped jaw 6and the front end of the longer arm of the jaw e is provided withlateral flanges e", which overlap the sides of thewyoke-shaped jaw 6 'InFigs. 1, 2, and 3 I have shown at f the pipe of a pump,and the operationof this apparatus will be readily understood from the foregoingdescription when taken in connecis moved forwardly until the pipefcomesin contact with the front end of the jaw N. The head at is then swungback into position, as shown in Figs. 1, 2, and 3, and the connectionwith the main frame is firmly made. The parts are shown in operativeposition in Figs. 2 and 3, and after the operation before described thelever 01 and swinging jaw e are manipulated so as to pass the pipe fupwardly through the yoke-shaped jaw 6 and in order to raise thepipefall that is necessary is to depress the longer arm of the lever d.In this operation the pipe f will be raised a certain distance each timethat the lever d is depressed, and when said lever is released or thepressure thereof is removed the shorter arm thereof will descend and thejaws e and e will automatically descend on the pipe f, and will thus beenabled to successively grasp said pipe at a lower point at eachsuccessive movement of the lever (1 At this operation the jaw 1)" movesupwardly at each upward movement of the pipe, and said pipe is free tomove vertically between the jaws a and b and in the operation oflowering the jawe, as before described, the jaws b and a grasp and holdthe pipe and prevent its return into the well. The lever c is intendedto provide means for raising said jaw so as to permit of a coupling orcoupling-head of the pipe f passing upwardly through the frame, and theflexible connections 0 of said leveris intended to prevent too great avertical movement thereon. The downwardly-directed member 6 of the jaw eis intended to hold said jaw and its attachments in proper relativeposition when the lever d is in the position shown in Fig. 3; but thismember 6 of the jaw e is not an absolute necessity and may or may not beemployed, and it will be understood that whenever the lever d isdepressed, as hereinbefore described, the connection of said member withthe rod 12 is broken and the said jaw is raised above the main frame.

This apparatus may also be employed in connection with an ordinaryderrick, in which case the lifting apparatus of the derrick would beconnected with the jaw e at 61 instead of the link I)", which forms aconnection with the lever d and in this event the operation will besubstantially the same as that hereinbefore described when the lover dis employed.

It will be understood that this apparatus may be adapted for use inconnection with pump devices of any size by simply and properlyadjusting the position of the block b, which is done by means of thescrew b and the movement of said block forwardlyin the operation of theapparatus is also prevented by the pipe f of the pump.

By means of this apparatus a pump-pipe I of any length may be quicklyand easily removed from a Well without danger of accident of any kind,and this apparatus may be 6 manipulated by two people or by a man and aboy, and by means thereof a great saving of time and expense isaccomplished and the danger of accidents which'frequently occur inoperations of this class is avoided. a

The downwardly-directed member 6 of the jaw e is not an absolutelyessential feature, and the position of this member will always dependupon the position of said jaw, and instead of using the jaw 19 inconnection with block 1) another form of sliding block may be providedwhich will operate directly in connection with the head a or the jaw a,which is connected therewith, and the jaw b may also be provided with asupplemental head, with which the teeth b will be connected, and thisjaw or this head may be straight or concave, as desired.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In an apparatusof the class described, a frame provided at the frontend with a hinged member, the center portion of which is provided with aclamping-jaw having backwardly-directed teeth, a slidable block mountedin said frame and provided with a forwardly-directed jaw havingcorresponding teeth, a support pivoted to said frame or hinged thereto,a lever connected with said support, a swinging jaw suspended fromsaidlever and a yoke-shaped jaw pivotally connected with said swinging jaw,the jaw which is connected with said sliding block being also providedwith a lever which projects no forwardly and is adapted to be connectedwith the main frame, substantially as shown and described.

2. In an apparatus of the class described,

a main frame, a head hinged to the front end :05 thereof and providedcentrally with a backwardly-directed jaw, a sliding block mounted insaid main frame and provided with a pivoted forwardly-directed jaw, alever connected with said pivoted jaw and projecting forwardly andadapted to be connected with the main frame, a swinging jaw suspendedabove the main frame and provided with a yokeshaped jaw which ispivotally connected therewith and means for moving said slidable I I5block forwardly, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of the subscribing witnesses, this 15th day of April,1902.

THOMAS DE WIT STARK.

Witnesses:

CHARLES A. N EATE, J r., NICHOLAS A. GERNoN.

